Bunch-builder for winding-machines



E. S. GARY, JR. BUNCH BUILDER FOR WINDING MACHINES.

AP PLICATION FILED OCT. I8. 1920.

Patented May 17, 1921.

, EDWARD STANLEY. GARY, JR., OF BALTIMORE, MARYLAND.

BUNCH-BUILDER non WINDING-MACHINES.

Application filed October 18, 1920. Serial No. 417,689.-

T all whom it may concern:

Be it known that I, EDWARD STANLEY GARY,'J1., a citizen of theUnited States, residing at Baltimore city, State of Maryland, have invented certain new and useful Tmprovernents in Bunch-Builders for VVindlng- Machines, of which the following s a specification.

This invention relates to improvements structed, and to provide a structure which is very simple and without moving parts, and withal, highly efficient 1n operation.

The object stated is attained by means of a novel device to be hereinafter described and claimed, and in order that the same may be better understood, reference is had to the accompanying drawing forming a part of this specification.

In the drawing Figure 1 is a plan view showing the application of the invention; Fig. 2 is a crosssection on the line 2-2 of Fig. 1, and Fig. 3 is a perspective view of the device detached.

Referring specifically to the drawing, 5 denotes the bobbin on which the thread or yarn is to be wound. One end of the bobbin 5 extends into the usual former cone 6 having a top slot 7 through which the thread passes to the bobbin. These parts are constructed and arranged in the usual manner, and hence a detailed description thereof is not necessary.

Above the thread slot 7 of the cone 6 is positioned the thread guide of the traversing mechanism, and as th1s mechanlsm forms no part of the present invention, it has not been illustrated, its operation being well understood by those skilled in the art. The thread guide is a wire rod 8 having one end doubled and bent to form an angular thread slot, one portion 9 of the slot extending. parallel to the axis of the bobbin 5, and the other portion v10 extending trans versely of the bobbin axis.

On top of the cone 6,.at oneside ofthe slot 7, 1s rlgldly mounted a thread restrain-Q ing device in the 'form ofa hook 11 which overhangs the slot 7 and has a longitudinally 'slotted-shank12 to take a cap screw 13.

whereby it is fastened to the cone,the slot permittmg adjustment of the to the slot.

ofthe winding is laid thereon, it is necessary to hold the thread out of the traverse until a bunch of-the proper size is wound,

after which the thread is allowed to take up its regular winding. This operation. .is

automatically effected by the, hook l'l in conjunction with the thread guide. of the traverse mechanism'.:. C At the commencement of the bunch wind, the thread lies in the slot 9 of the thread guide, and thence passes down through the slot 7 to the bobbin, it being engaged at this slot by the bill of the hook 11 and held thereby in the slot 9. It

will be evident that the thread is now guided tothe bobbin without any traverse motion, this being due to the fact that the movement of thethread guide has no effect on the thread in the slot 9, as the latter is parallel to the bobbin and to the direction in-which hookrelative.

'65 In order that a bunch ofthread may be.-

formed on thebobbin. 5-before the main body.

Specification of Letters Patent. Patented May 1921,---

the traverse mechanism moves the thread,

it being understood that the thread guide is carried back and forth along the bobbin 5. However, this movement of the thread guide has no effect on the thread when the latter is passing through the slot 9. As the bunch builds up on the bobbin and its diameter or girth increases, the course of the thread as it runs to the bobbin also changes as shown by dotted lines in Fig. 2, the thread gradually moving in a direction transversely of the slot 9 and in the direction of the extremity of the hook 11, until it slips off the latter, and as it is now no longer restrained or held in the slot 9, it slips into the slot 10 when the latter comes opposite. As soon as the thread enters the slot 10, the traverse motion starts as thisslot runs transverse to the bobbin and the path in which the thread guide reciprocates, so that the thread is now carried directly to the bobbin and moved back and forth along the latter by the 1. In a Winding machine, the combination with a bobbin, and the thread guide of a traverse mechanism, said guide having a thread engaging portion and aslot leading thereto, saidslot extending parallel to the direction of the strokes of the thread guide;

of a restraining device engageable by the thread in its passage from the thread guide to the bobbin, said device being positioned to hold the thread in the aforesaid slot to permit a building up of abunch on the bobbin, said bunch by its increasing diameter operating to automatically disengage the thread from the restraining device and perinit passage of the thread to the thread-engaging portion of the thread guide.

2. In a Winding machine, the combination with a bobbin, and the thread guide of a traverse mechanism, said guide having a thread passage running transversely of the direction in which the guide travels and another passage leading thereto and running parallel to the direction of travel of the guide; of a restraining device engageable by the thread in its passage from the thread guide to the bobbin, said device being positioned to hold the thread in the secondmentioned passage of the thread guide to permit a building up of a bunch on the bobbin, said bunch by. its increasing diameter operating to automatically disengage the thread from the restraining device and permit movement of the thread to. the first-mentioned passage of the thread guide.

8. In a Winding machine, the combination with a bobbin, and the thread guide of a traverse mechanism, said guide having a thread-engaging portion and a slot leading thereto, said slot extending parallel to the direction of travel of the guide; of a hook engageable by the thread in its passage from the thread guide to the bobbin, sald hook being positioned to hold the thread in the aforesaid slot to permit'a building up of a bunch'on the bobbin, said bunch by its in-- creasing diameter operating to automatically I disengage the thread from the hook and permit passage of the thread to the thread-engaging portion of the thread guide' In testimony whereof I afiiX my si nature.

EDWARD STANLEY G'ARY, JR. 

